Quarter	US dollars
2004-12-31	0
2005-03-31	0
2005-06-30	0
2005-09-30	0
2005-12-31	0
2006-03-31	0
2006-06-30	0
2006-09-30	0
2006-12-31	0
2007-03-31	0
2007-06-30	0
2007-09-30	0
2007-12-31	0
2008-03-31	0
2008-06-30	0
2008-09-30	0
2008-12-31	1
2009-03-31	0
2009-06-30	0
2009-09-30	0
2009-12-31	0
2010-03-31	2
2010-06-30	19
2010-09-30	25
2010-12-31	0
2011-03-31	10
2011-06-30	11
2011-09-30	101
2011-12-31	88
2012-03-31	32
2012-06-30	38
2012-09-30	27
2012-12-31	19
2013-03-31	62
2013-06-30	94
2013-09-30	65
2013-12-31	25
2014-03-31	10
2014-06-30	109
2014-09-30	19
2014-12-31	137
2015-03-31	76
2015-06-30	39
2015-09-30	114
2015-12-31	70
2016-03-31	35
2016-06-30	51
2016-09-30	22
2016-12-31	9
2017-03-31	9
2017-06-30	9
2017-09-30	8
2017-12-31	8
2018-03-31	0
2018-06-30	0
2018-09-30	0
2018-12-31	0
2019-03-31	0
2019-06-30	0
2019-09-30	0
2019-12-31	0
2020-03-31	0
2020-06-30	0
2020-09-30	0
2020-12-31	0
2021-03-31	0
2021-06-30	0
2021-09-30	0
2021-12-31	0
2022-03-31	0
2022-06-30	0
2022-09-30	0
2022-12-31	0
2023-03-31	0
2023-06-30	0
2023-09-30	0